コンピュータ制御したディスク自由鍛造法の開発

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  • Forging of disk-shape products by a flexible machine controlled by a micro-computer.
  • コンピュータ セイギョシタ ディスク ジユウ タンゾウホウ ノ カイハツ

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A flexible forging method for the production of disk-shape products in which the billet is successively compressed by a pair of upper dies is proposed. The distance between the upper dies, the ram stroke and the angle of rotation of a lower die are controlled by a micro-computer. To examine the problems associated with this method, disk-shape billets of plasticine are compressed on a small-size flexible machine. It is observed that flows are caused over the compressed surface of the product without large flaws is obtained when disks are repeatedly compressed with a small reduction in height by dies having a round corner, whose radius is greater than the reduction in height. The non-uniform deformation on the circumferential surface is effectively reduced by employing a large rotation angle after each compression.

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